Thanks for the info, guys!
Strangely there isn't any readme file in the maps' folder that I downloaded. That is why I haven't done any resetting.

You ALWAYS have to follow the same steps when running a new map. They probably forgot to add the reset steps to the upped turbo map folder because so few people were running upped turbos at the time the V4 files were popular and everyone who did knew the steps inside and out. Which brings me to the question: Why the heck aren't you running V5 maps?